Days in Portsmouth are currently getting shorter, about 19 minutes shorter than a week ago.*
* Calculated from sunrise and sunset times; actual visible daylight can vary slightly with weather, elevation and atmospheric conditions.
Geographic position of Portsmouth
Portsmouth is located in the Northern Hemisphere and the Western Hemisphere. Its coordinates are 41.6023° N, 71.2503° W.
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Distance from the Equator:
about 4,631 km (2,878 mi)
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Distance from the North Pole:
about 5,388 km (3,348 mi)
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Distance from the South Pole:
about 14,650 km (9,103 mi)
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Distance from the Prime Meridian:
about 5,931 km (3,685 mi) west
Portsmouth lies in the temperate latitude zone. This latitude affects daylight length, seasonal variation and how local solar time compares with standard clock time.
Antipode of Portsmouth
The point on Earth exactly opposite Portsmouth is near Perth - when it's noon in Portsmouth, it's close to midnight there.
Golden Hour & Blue Hour in Portsmouth
Approximate times based on sunrise/sunset. Actual golden hour quality varies with weather and season.
Current Season in Portsmouth
Portsmouth is currently in Autumn. Autumn begins around September 22, which is 1 day from now.
Because Portsmouth is in the Northern Hemisphere, its seasons run opposite to cities in the other hemisphere. When it is autumn here, places on the other side of the equator are experiencing the opposite season at the same time.
Longest & Shortest Day in Portsmouth
In Portsmouth, the longest day of the year falls around June 21 and lasts about 15h 11m. The shortest day falls around December 21 and lasts about 9h 9m, a difference of roughly 6h 2m between the two.
This seasonal swing depends on Portsmouth's latitude: cities closer to the equator see little variation in daylight throughout the year, while cities farther from it, like Portsmouth at 41.60° N, experience a much wider gap between summer and winter daylight.
Population Ranking of Portsmouth
With a population of 17,756, Portsmouth ranks as the 2934th most populous city in United States, out of 3,397 cities tracked on this site.
Airport in Portsmouth
Newport State Airport (NPT / KUUU) is a regional airport serving Portsmouth directly.
Current local time at the airport is 10:26:33.
Daylight saving time changes in Portsmouth
Portsmouth uses the IANA time zone identifier America/New_York. The current local offset is UTC-4 / EDT.
2026
Previous change: Daylight saving time started
- The offset changed from UTC-5 / EST to UTC-4 / EDT.
- The clock was moved forward from 02:00 to 03:00 local time.
2026
Next change: Standard time starts
- The offset will change from UTC-4 / EDT to UTC-5 / EST.
- The clock will be moved back from 02:00 to 01:00 local time.
Best Time to Call Portsmouth
Business hours in Portsmouth (9 AM-5 PM local time) fall at these local times elsewhere:
- Los Angeles: 6:00 AM - 2:00 PM ( Partial overlap)
- London: 2:00 PM - 10:00 PM ( Partial overlap)
- Dubai: 5:00 PM - 1:00 AM (next day) ( Partial overlap)
- Mumbai: 6:30 PM - 2:30 AM (next day) ( Partial overlap)
- Tokyo: 10:00 PM - 6:00 AM (next day) ( Outside normal hours)
- Sydney: 11:00 PM - 7:00 AM (next day) ( Outside normal hours)
Times shown reflect current UTC offsets and may shift by up to an hour around daylight saving transitions.
Time Difference from Portsmouth
Compare time in Portsmouth with major cities worldwide.
Time now in other cities in United States
Public Holidays Affecting Portsmouth
Official national holiday observed in United States.
Frequently Asked Questions
What time zone is Portsmouth in?
Portsmouth follows the America/New_York time zone, the official IANA identifier used by computers and databases worldwide to track local time accurately. Right now, this puts Portsmouth at UTC-4.
What time is it in Portsmouth right now?
The current local time in Portsmouth is 10:26:33 on Sunday, 20 September 2026. This page updates automatically, so refreshing it will always show the live time.
Does Portsmouth observe daylight saving time?
Yes. Portsmouth is currently observing daylight saving time, which temporarily shifts the clock forward by one hour compared to standard time.
How far ahead or behind UTC is Portsmouth?
Portsmouth is currently UTC-4, meaning local time is 4 hours behind Coordinated Universal Time (UTC).
What is the nearest airport to Portsmouth?
Newport State Airport (NPT) is the airport serving Portsmouth. The current local time at the airport is 10:26:33.
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